Too little or no pressure – this is how a hydraulic system may stop
working. There is often incorrect air in the system because there
are one or more leaks. The correct viscosity of the liquid used and
sufficient cooling are also important for the pressure to be correct.
And, of course, the coupling, pump and engine must not be
allowed to grind, overheat or foam.
Fluctuations in pressure and flow make operation difficult and the
system unpredictable. This is usually caused by contamination,
blockages or tension. Many hydraulic systems can already be rem-
edied by cleaning the corresponding components, bleeding the
system and replacing the old liquids.
7.4.2 Insufficient hydraulic power
If the charge pressure is not inside the nominal
range, no high pressure can be built up in the
system.
Trouble shooting charge pressure,
example travel circuit
Troubleshooting – Trouble shooting, hydraulics
BW 900-50
213
Go
to
Discount-Equipment.com
to
order
your
parts